Re: doc modification

[James]

On 26/06/14 13:57, David Nalesnik wrote:
>
>
>
> On Thu, Jun 26, 2014 at 7:49 AM, David Nalesnik 
>
>     Not sure why.  Attached is my result, where the tie is there
>      (Win7, 64-bit).
>
>
> In any case, the altered code is equivalent to
>
>  \alterBroken extra-offset #'((0 . 0) (-2 . 5)) Tie
>
> so I can't understand why it wouldn't work as expected.
>
> --David
>
Hmm..

What I have found is that if you use lilypond-book (which is what the
documentation uses) I don't get the expected output but with lilypond in
a *.ly file I do.

If you are unfamiliar with how doc works in that sense, create a file
called foo.tely and it has the content of

--snip--

\input texinfo @node Top
@top


@lilypond[ragged-right,quote]
#(define (my-callback grob)

  (let* (

           ;; have we been split?

           (orig (ly:grob-original grob))

           ;; if yes, get the split pieces (our siblings)

           (siblings (if (ly:grob? orig)

                             (ly:spanner-broken-into orig)

                             '())))

    (if (and (>= (length siblings) 2)

                 (eq? (car (last-pair siblings)) grob))

        '(-2 . 5))))


\relative c'' {

  \override Tie.extra-offset = #my-callback

  c1 ~ \break

  c2 ~ c

}
@end lilypond


@bye

--snip--

Then run

lilypond-book --pdf foo.tely && texi2pdf foo.texi && evince foo.pdf

I use this to check and create simple examples, snippets and the like.

James